1Soak raisins in water, set aside. In a large bowl, cream together butter and sugar. Add eggs. Mix.
Stir in cinnamon, nutmeg, cloves, and salt. Mix. Add blackberries, peach preserves, and buttermilk. mix. Add flour and mix until all are combined.
Grease and flour cake pans. Bake in 3 round layers at 350 degrees for 25 minutes. Cool.
2Slightly mash blackberries.
To assemble cake: Place one layer on cake plate. Sprinkle with powdered sugar. Sprinkle some mashed berries on top of sugar. Repeat with the next two layers. Be sure not to put too many berries (or big pieces of berries) in between layers of cake or layers might slide off each other.